Mortar-mixer.



J. LAUN. MORTAR MIXER. APPLICATION FILED sEPT.1s, 1912,

Patented Nov. 24, 1914.

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J. LAUN.

MORTAR MIXER. APPLIOATION FILED SEPT. 16, 1912.

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UNTTED sTaTns PATENT cerros.;

JUSTUS LAUN, OIF CHICAGO, ILLINOIS.

T0 all whom it may concern Be it known that I, JUsTUs LAUN, a citizen of the UnitedStates of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Mortar-Mixers, of which the following is a specification.

This invention relates to certain new and useful improvements in `mortar mixers of that type in which the mixing of materials is performed by power supplied from an explosive engine, which engine, as `well as the mixing receptacle and operating mechanism, `is mounted on a wheeled frame for convenient and easy transportation, and it consists in certain peculiarities of the construction, novel arrangement and operation ofthe various parts thereof, as will be hereinafter more `fully set forth and specifically claimed. y i r The principal objectof the invention 1s to provide a mortar mixing machine of the above named general character, which shall be simple and inexpensive in construction, strong, durable, compact in form,` and etlicient in operation, and somade astorender the apparatus stable or` iirm against the lshocks and vibrations incident to the operation of the engine by providing a supporting frame for the latter of I-beam construction, with the web of the I-beam frame located vertically so as to oppose the vertical movements of the .engine piston or pistons.

Another important object ofthe invention is `to provide means for quickly throwing the rotary mixer-shaft into gear with the engine-shaft, and insuch a manner, that should any of the paddles orstirring arms `on the mixer-shaft, strike an obstruction,

such as a stone, which is often found in the lime used as one of the ingredients of the mortar', breakage of the parts will be prevented.

Various other objects and advantages of the invention will be disclosed in the subjoined description and explanation.

In the accompanying drawings which serve to illustrate anembodiment of the invention-Figure l is a side view with portions of the housing and mixing receptacle or trough broken away to disclose the operating and mixing mechanism; Fig. 2 1s a front view in elevation; Fig. 3 is a plan view partly in section and partly in elevation, showing a part of the housing for the operating mechanism broken away, and

Specification of Letters Patent.

y Patented Nov. 24:, 1914.

' Application filed. September 16, 1912. Serial No. 720,451.

illustrating the mixing receptacle shortened for the convenience of illustration, but with the front axle and wheels omitted.

Like numerals of reference refer to corresponding parts throughout the different views of the drawings.

Referencenumeral 10 designates the rear portion `of the main or supporting frame, which portion is by preference lmade of an I-beam formed into three sides of a rectangular figure, the open end of said portion of the frame being presented forwardly as is clearly shown in Fig. 3 of the drawings. The I-beam frame 10, is mounted at about its middle on the rear axle 12, with its web l0, which unites its upper and lower flanges vertically, which `axle is provided at each of its ends with a wheel 13, `of

the ordinary or any preferred` construction. Extended across the frame 10, `at `about its middle is a beam 141, on which are mounted pillow-blocks 15 and 16, in the former ofwhich is journaled `the rear end of the mixer-shaft 17, which has mounted on `its rear portion a gear-,18, to mesh with a theframe 10, and extended upwardly therefrom to a suitable point. The plate 23 is provided on its fla-ontsurface with a forwardly projecting flange 24, which is substantially U-shaped. a

Mounted on the frame 10, is a housing 25, which is `preferably box-like or` rectangular inshape, and has in its upper portion an exhaust pipe or outlet 26, for the gases of the engine and a supply pipe 27 for water. This housing is provided on each of its sides and in its rear wall with a doorway, which are closed by means of hinged doors 28, which may have hasps 29, hooks` 30, and eyes 31 for fastening the same in closed positions.

Mounted vertically on the I-beam frame 10, within the housing 25, is a gasolene or other explosive engine, which may be of the ordinary or any preferred construction, the fly wheel 32, and shaft 33, of which onlyare shown.

Mounted on the front portion of the engine shaft 33, is a pinion 34, which meshes with a gear 35, mounted on therearend of the shaft 20, which, as before stated, is journaled in the pillow block 16, and journal box 21, so that said shaft will lie horizontally and longitudinally with respect to the machine. j

Mounted on'the shaft 20, between its bearings so as to rotate with said shaft is a sliding sleeve 36, which has at its rear portion Va grooved collar 37, to receive adjustable projections 3S, such as screws, one of which is secured in each of the prongs 39, of a yoke lever 40, the prongs of which embrace the .collar 37, but preferably without contacting with the same. The yoke lever 40 is fulcrumed on an arm 41, which is extended forwardly and laterally from the pillow block :16, yand said yoke lever' is extended through a suitable opening 42, in one of the doors 28, `of the housing so that it may be easily reached from kthe exterior thereof. Mounted at its rear end on and within the 5U-shaped flange 24, of the plate 23, is the *mixing receptacle 57which is trough like 'in shape and extends forwardly from the .tI-beam frame 10 and constitutes a part of the Vsupporting frame of the apparatus. The vfront portion of the receptacle 57, has secured. to its sides 'the yoke 58, which is pivotally connected by means of a king `bolt `59, to the front axle 60, which is provided lat 'each of its endswith wheels 13, of the ordinary construction. The front axle 60, may be provided with a tongue 61, employed for transporting the machine from one point 'to another.

YThe front end of the receptacle 57, is partially closed by means of an end plate 62, in whi-chfthe front end ofthe mixer-shaft 17, is journaled, which shaft is located longitudinally and centrally within the receptacle y57, and has that portion thereof located Within the receptacle formed angularly and provided with a series of radial paddles or stirring arms 68, employed for mixingthe ingredients comprising the mortar and for forcing the same forwardly in the mixing receptacle. rlhe lower portion of the front end of said receptacle is provided with a doorway 64, which is closed by means of the segmental door 65, to which are secured upwardly extended arms 66, which are pivotally mounted at their upper ends on a rod 67, horizontally mounted on lugs or brackets 68, on the end plate 62, of the receptacle. A

lever 69, fulcruined on the rod 67, has its lower end pivotally connected to one of the arms 66, near its end, and is extended upwardly above the end plate 62, and has just above said end plate a pivoted dog 70, provided with notches 71, to engage said plate so as to hold the door 65 in open or closed positions. The end plate 62, may be provided with a journal box 72, for the front end of the shaft 17, whichjournal box is supported on the end plate by means of a bracket 7 3, which is bolted to said plate.

From the foregoing and by reference to the drawings it will be clearly understood and readily seen-that when the parts are in thepositions shown in Fig. 1 ofthe 'drawings, and assuming thatthe engine is -in operation, the clutch mechanism will be out of engagement with the gear 19, which gear will lie idly on the shaft 20, thus imparting no movement vto the mixer-shaft.

Having thus fully described my invention, what I claim `as new and desire to secure by Letters APatent, isMvva casing supported thereon and having one open end, a plate supported on the I-beam,

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partly closing said open end of the'casing, Lv L a strap 'flange projecting forwardly from said plate, a trough-like casing supported at its rear end on said flange, and :wheels connected to the forward end of said troughlike casing. v

2. A ywheel supporting frame "having `a rear frame eleinentof lli-beam construction,

a casing supported thereon and having one open end, av platevsupported on the lI-beam,

partly closing said open end ofthev casing, a

strap flange projecting forwardlyl from said plate, a trough-like casing supported at its rear end on said flange,said casinginclud- `ing a rounded bottom, a yoke contacting with the sides of the casing and projected below the bottom thereof topresent atransverse strip, and wheels connected to *said strip. j

lIn witness whereof, I have hereunto subscribed my name this 12 day of Sept. 1912,

in the presence of two subscribing witnesses.

JUSTUS LAUN.

Witnesses:

CEAS. C. TILLMAN, A. S. PHILms.

topics of thiapatent may be obtained for ve cents each, by addressi'uigl the Commissionerof-Patents,

Washingtom. G. 

